A 3D europium-organic-framework from phenyl imidazole dicarboxylate showing high sensitivity in detection of nitrobenzene

Аннотация

A Eu-based luminescent MOF, namely, {[Eu(µ₃-HPhIDC)(µ₂-C₂O₄)_0.5(H₂O)] · 2H₂O}_n (I) (H₃PhIDC = 2-phenyl-1H-imidazole-4,5-dicarboxylic acid) has been hydrothermally synthesized and structurally characterized by single-crystal X-ray diffraction techniques (CIF file CCDC no. 1457365). The MOF I indicates characteristic sharp emission bands of Eu³⁺ ion, which is selectively sensitive to nitrobenzene- based derivatives (nitrobenzene, 2-nitrotoluene, 3-nitrotoluene, 1,3-dinitrobenzene and 2,4-dinitrotoluene). These properties make I a potential fluorescence sensor for these chemicals.